| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] [v-ing] [prep] some | 25 |
|
| 2 | [vb -s] been [v-ing] [prep] some | 25 |
|
| 3 | has [been] [v-ing] [prep] some | 21 |
|
| 4 | [vb -s] [been] [v-ing] for some | 19 |
|
